A Wide-PCE-Dynamic-Range CMOS Cross-Coupled Differential-Drive Rectifier for Ambient RF Energy Harvesting
In: IEEE Transactions on Circuits and Systems II: Express Briefs, Jg. 68 (2021-06-01), S. 1743-1747
Online
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Zugriff:
This Brief reports a cross-coupled differential-drive (CCDD) rectifier with a wide dynamic range (DR) in its power conversion efficiency (PCE). Specifically, it features a self-body-biasing technique to reduce the forward Vth, along with the diode-connected MOSFETs to stem the reverse-leakage current while improving the forward current. The merits of our CCDD rectifier are exemplified via two input-capacitor-coupling configurations: shared-capacitor coupling (SCC) and individual-capacitor coupling (ICC) . Fabricated in 0.13- $\mu \text{m}$ CMOS, the SCC-CCDD and ICC-CCDD measure a DR of 13 and 14.5 dB, respectively, for a PCE >40%. Alternatively, the SCC-CCDD exhibits a peak PCE of 83.7% with a sensitivity of −19.2 dBm at 1 V, whereas the ICC-CCDD shows a peak PCE of 80.3% with a sensitivity of −18.7 dBm.
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A Wide-PCE-Dynamic-Range CMOS Cross-Coupled Differential-Drive Rectifier for Ambient RF Energy Harvesting
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| Autor/in / Beteiligte Person: | Mak, Pui-In ; Rajendran, Jagadheswaran ; Ramiah, Harikrishnan ; Yin, Jun ; Martins, Rui P. ; Chong, Gabriel |
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| Zeitschrift: | IEEE Transactions on Circuits and Systems II: Express Briefs, Jg. 68 (2021-06-01), S. 1743-1747 |
| Veröffentlichung: | Institute of Electrical and Electronics Engineers (IEEE), 2021 |
| Medientyp: | unknown |
| ISSN: | 1558-3791 (print) ; 1549-7747 (print) |
| DOI: | 10.1109/tcsii.2019.2937542 |
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